michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef _MOZILLA_GFX_FILTERPROCESSING_H_
michael@0: #define _MOZILLA_GFX_FILTERPROCESSING_H_
michael@0: 
michael@0: #include "2D.h"
michael@0: #include "Filters.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace gfx {
michael@0: 
michael@0: const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_B = 0;
michael@0: const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_G = 1;
michael@0: const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_R = 2;
michael@0: const ptrdiff_t B8G8R8A8_COMPONENT_BYTEOFFSET_A = 3;
michael@0: 
michael@0: class FilterProcessing
michael@0: {
michael@0: public:
michael@0: 
michael@0:   // Fast approximate division by 255. It has the property that
michael@0:   // for all 0 <= v <= 255*255, FastDivideBy255(v) == v/255.
michael@0:   // But it only uses two adds and two shifts instead of an
michael@0:   // integer division (which is expensive on many processors).
michael@0:   template<class B, class A>
michael@0:   static B FastDivideBy255(A v)
michael@0:   {
michael@0:     return ((v << 8) + v + 255) >> 16;
michael@0:   }
michael@0: 
michael@0:   static TemporaryRef<DataSourceSurface> ExtractAlpha(DataSourceSurface* aSource);
michael@0:   static TemporaryRef<DataSourceSurface> ConvertToB8G8R8A8(SourceSurface* aSurface);
michael@0:   static TemporaryRef<DataSourceSurface> ApplyBlending(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode);
michael@0:   static void ApplyMorphologyHorizontal(uint8_t* aSourceData, int32_t aSourceStride,
michael@0:                                           uint8_t* aDestData, int32_t aDestStride,
michael@0:                                           const IntRect& aDestRect, int32_t aRadius,
michael@0:                                           MorphologyOperator aOperator);
michael@0:   static void ApplyMorphologyVertical(uint8_t* aSourceData, int32_t aSourceStride,
michael@0:                                           uint8_t* aDestData, int32_t aDestStride,
michael@0:                                           const IntRect& aDestRect, int32_t aRadius,
michael@0:                                           MorphologyOperator aOperator);
michael@0:   static TemporaryRef<DataSourceSurface> ApplyColorMatrix(DataSourceSurface* aInput, const Matrix5x4 &aMatrix);
michael@0:   static void ApplyComposition(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator);
michael@0:   static void SeparateColorChannels(DataSourceSurface* aSource,
michael@0:                                     RefPtr<DataSourceSurface>& aChannel0,
michael@0:                                     RefPtr<DataSourceSurface>& aChannel1,
michael@0:                                     RefPtr<DataSourceSurface>& aChannel2,
michael@0:                                     RefPtr<DataSourceSurface>& aChannel3);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     CombineColorChannels(DataSourceSurface* aChannel0, DataSourceSurface* aChannel1,
michael@0:                          DataSourceSurface* aChannel2, DataSourceSurface* aChannel3);
michael@0:   static void DoPremultiplicationCalculation(const IntSize& aSize,
michael@0:                                         uint8_t* aTargetData, int32_t aTargetStride,
michael@0:                                         uint8_t* aSourceData, int32_t aSourceStride);
michael@0:   static void DoUnpremultiplicationCalculation(const IntSize& aSize,
michael@0:                                                uint8_t* aTargetData, int32_t aTargetStride,
michael@0:                                                uint8_t* aSourceData, int32_t aSourceStride);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     RenderTurbulence(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency,
michael@0:                      int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     ApplyArithmeticCombine(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4);
michael@0: 
michael@0: protected:
michael@0:   static void ExtractAlpha_Scalar(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride);
michael@0:   static TemporaryRef<DataSourceSurface> ConvertToB8G8R8A8_Scalar(SourceSurface* aSurface);
michael@0:   static TemporaryRef<DataSourceSurface> ApplyBlending_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode);
michael@0:   static void ApplyMorphologyHorizontal_Scalar(uint8_t* aSourceData, int32_t aSourceStride,
michael@0:                                                uint8_t* aDestData, int32_t aDestStride,
michael@0:                                                const IntRect& aDestRect, int32_t aRadius,
michael@0:                                                MorphologyOperator aOperator);
michael@0:   static void ApplyMorphologyVertical_Scalar(uint8_t* aSourceData, int32_t aSourceStride,
michael@0:                                                uint8_t* aDestData, int32_t aDestStride,
michael@0:                                                const IntRect& aDestRect, int32_t aRadius,
michael@0:                                                MorphologyOperator aOperator);
michael@0:   static TemporaryRef<DataSourceSurface> ApplyColorMatrix_Scalar(DataSourceSurface* aInput, const Matrix5x4 &aMatrix);
michael@0:   static void ApplyComposition_Scalar(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator);
michael@0: 
michael@0:   static void SeparateColorChannels_Scalar(const IntSize &size, uint8_t* sourceData, int32_t sourceStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data, int32_t channelStride);
michael@0:   static void CombineColorChannels_Scalar(const IntSize &size, int32_t resultStride, uint8_t* resultData, int32_t channelStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data);
michael@0:   static void DoPremultiplicationCalculation_Scalar(const IntSize& aSize,
michael@0:                                         uint8_t* aTargetData, int32_t aTargetStride,
michael@0:                                         uint8_t* aSourceData, int32_t aSourceStride);
michael@0:   static void DoUnpremultiplicationCalculation_Scalar(const IntSize& aSize,
michael@0:                                                uint8_t* aTargetData, int32_t aTargetStride,
michael@0:                                                uint8_t* aSourceData, int32_t aSourceStride);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     RenderTurbulence_Scalar(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency,
michael@0:                             int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     ApplyArithmeticCombine_Scalar(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4);
michael@0: 
michael@0: #ifdef USE_SSE2
michael@0:   static void ExtractAlpha_SSE2(const IntSize& size, uint8_t* sourceData, int32_t sourceStride, uint8_t* alphaData, int32_t alphaStride);
michael@0:   static TemporaryRef<DataSourceSurface> ConvertToB8G8R8A8_SSE2(SourceSurface* aSurface);
michael@0:   static TemporaryRef<DataSourceSurface> ApplyBlending_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, BlendMode aBlendMode);
michael@0:   static void ApplyMorphologyHorizontal_SSE2(uint8_t* aSourceData, int32_t aSourceStride,
michael@0:                                              uint8_t* aDestData, int32_t aDestStride,
michael@0:                                              const IntRect& aDestRect, int32_t aRadius,
michael@0:                                              MorphologyOperator aOperator);
michael@0:   static void ApplyMorphologyVertical_SSE2(uint8_t* aSourceData, int32_t aSourceStride,
michael@0:                                              uint8_t* aDestData, int32_t aDestStride,
michael@0:                                              const IntRect& aDestRect, int32_t aRadius,
michael@0:                                              MorphologyOperator aOperator);
michael@0:   static TemporaryRef<DataSourceSurface> ApplyColorMatrix_SSE2(DataSourceSurface* aInput, const Matrix5x4 &aMatrix);
michael@0:   static void ApplyComposition_SSE2(DataSourceSurface* aSource, DataSourceSurface* aDest, CompositeOperator aOperator);
michael@0:   static void SeparateColorChannels_SSE2(const IntSize &size, uint8_t* sourceData, int32_t sourceStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data, int32_t channelStride);
michael@0:   static void CombineColorChannels_SSE2(const IntSize &size, int32_t resultStride, uint8_t* resultData, int32_t channelStride, uint8_t* channel0Data, uint8_t* channel1Data, uint8_t* channel2Data, uint8_t* channel3Data);
michael@0:   static void DoPremultiplicationCalculation_SSE2(const IntSize& aSize,
michael@0:                                         uint8_t* aTargetData, int32_t aTargetStride,
michael@0:                                         uint8_t* aSourceData, int32_t aSourceStride);
michael@0:   static void DoUnpremultiplicationCalculation_SSE2(const IntSize& aSize,
michael@0:                                                uint8_t* aTargetData, int32_t aTargetStride,
michael@0:                                                uint8_t* aSourceData, int32_t aSourceStride);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     RenderTurbulence_SSE2(const IntSize &aSize, const Point &aOffset, const Size &aBaseFrequency,
michael@0:                           int32_t aSeed, int aNumOctaves, TurbulenceType aType, bool aStitch, const Rect &aTileRect);
michael@0:   static TemporaryRef<DataSourceSurface>
michael@0:     ApplyArithmeticCombine_SSE2(DataSourceSurface* aInput1, DataSourceSurface* aInput2, Float aK1, Float aK2, Float aK3, Float aK4);
michael@0: #endif
michael@0: };
michael@0: 
michael@0: // Constant-time max and min functions for unsigned arguments
michael@0: static inline unsigned
michael@0: umax(unsigned a, unsigned b)
michael@0: {
michael@0:   return a - ((a - b) & -(a < b));
michael@0: }
michael@0: 
michael@0: static inline unsigned
michael@0: umin(unsigned a, unsigned b)
michael@0: {
michael@0:   return a - ((a - b) & -(a > b));
michael@0: }
michael@0: 
michael@0: } // namespace gfx
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif // _MOZILLA_GFX_FILTERPROCESSING_H_